2 years ago

Kayla sold half of her comic books and then bought seven more. she now has 28. with how many did she begin

Mathematics

1 answer:

bezimeni [28]2 years ago

7 0

28 - 7 = 21
21 x 2 = 42

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Write the explicit rule for the arithmetic sequence

blagie [28]

Given that:
a1=27, an=(an-1)+4
the second term will be:
a2=a1+4
a2=27+4=31
The explicit formula for arithmetic sequence is given by:
an=a+(n-1)d
where:
a= first term
d=common difference
n=nth term
from the information given:
a=27
d=31-27=4
thus the explicit formula will be:
an=27+(n-1)4
an=27+4n-4
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Answer: an=23+4n

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2 years ago

Describe the piecewise function below by evaluating the function for given values of the domain

tekilochka [14]

We have a piecewise function.
Therefore, to find the function, we must evaluate each domain separately.
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The function for this domain is:
$y = -3
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The function for this domain is:
$y = mx + b
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Where,
$b = -3

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 m = (1 - (-7)) / (2 - (-2))$
$m = (1 + 7) / (2 + 2)

 m = 8/4

 m = 2$
Substituting:
$y = 2x - 3
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For $x\ \textgreater \ 2$ :
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3 years ago

The video store sold 5 movies for 12 dollars if 20 movies are sold how many dollars will be earned

spayn [35]

Answer:

$48

Step-by-step explanation:

The video store sold 5 movies for 12 dollars .

Each movie cost 12/5 dollars

Which is 2.4dollars .

20 movies will be sold for

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2 years ago

Let g(x)=-5x+2 with g(-1)

masha68 [24]

Replace x with -1.

G(-1) = -5(-1) + 2

= 5 + 2

= 7

I hope this Helps!

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2 years ago

Renting video games from Store A costs $3.50 per game plus a monthly fee of $7.50. Renting video games from Store B costs $5.00

Burka [1]

Answer:

Step-by-step explanation:

5 0

2 years ago

Read 2 more answers